Grain door



Oct. 17, 1933. M. LINDSAY 1,931,261

GRAIN DOOR VFiled sept. 29, 1931 2 sheets-sheet 1 ffl/:NMR/yELU/LLEZ//wsgy EMWHWYE Oct. 17, 1933. M, LlNpsvAY 1,931,261

GRAIN noon Filed sept. 29, 1931 2 sheets-sheet 2 s; W Q5 v @l (III @K@5% 'RW j all .jl-VUE N TU R Patented. Oct. 17,1933

`1,931,261 y lGRAIN Doon `Melville Lindsay, crestw'yna, Saskatchewan, Y-v A Canada v Application. september 29, 1931, 'serialV iN.l f

565,821, and in Canada September 30, 1930 3 claims.` (c1. zo-zs)'I'hisinvention relates toimprovements Vin grain doors and an object ofthe invention is to provide a simplifiedv structure ofV this charac-'-ter which will readily retain grain within a car and may be easilyoperated to release the grain when it is desired to unload it. i

A further object of the .invention is to` provide a simplied type ofstructure which may be stored within the car within a minimum of spacewithout constituting an obstruction..

A still `further object of the invention is `to provide a structurewhich may be manufactured at a. reduced cost. j i

With these and other objects inview, the invention consists essentiallyof a grain door formed with the main-section which yis, swingablyattached to thecardoor frame, said section hingedly carrying twominorsections which as a unit constitute the whole grain door when in,closed position, With fmeans for securing and releasing ,the door, asmore fully described in the present specification andfillustrated in theaccompanying drawings which formlpartY of the same.

In the drawings:.- Figure-1 is a fragmentary interior of a railway carshowing the door mounted inclosed position. i

Figure 2 is a section taken on the line 2--2 of Figure 1f Figure 3 is asimilar view to Figure 1 ing the door in stored position.

Figure 4 is a fragmentary sectional` detail of the hinged connection ofthe main portion o1' the door, and

show- Figure 5 is a sectional detail of an alternative form of lockingmeans for the door.

Referring more particularly to the drawings,

A indicates the car as a whole and B indicates the grain door. The doorB is preferably made up of three parts, viz, the main doorsection 10,which is formed with a hinge unit 11 adapted to be mounted on vthe hingemounting rod 12 which is positioned at one side of the door frame withinthe interior of the car.

The hinge rod 12 is mounted in a recess formed between the upper andlower parts of the door frame 13 and 14, more rparticularly illustratedin Figure 1.

The smaller or auxiliary door sections 15 and 16 are hingedly connectedacross the upper and lower edges respectively of the main door 10, asclearly indicated in Figure 3, and as a whole the door is adapted to fitin a, recess 17 in the interior wall of the car, as illustrated inFigure 1.

elevation of the Locking members 18 are provided at one side of therecess 17,'so as to co-operate withV corresponding rmembers 19 in thedoor structure, so that the 'structure may be rigidly fastenedv withinthe recess 17 when'it is not in use.

Oneach side of the door frame spaced apart projecting plates 2Q aresecured l,which seal the joint between the doorframe and the doorstructure, and thus immediately Iprevent fthe escape of any grain.through these joints. At the'` same vtime thesefplates will constituteasupport for the hinged auxiliary sections of the door. On one iside,ofthe door frame a lip is formed between the plates lto receive theouter `edge of the main section. 70

As illustrated invFigures 1 and* 3, these plates are secured on `theinside of the door frame, and will not in any way interfere with theopening of-the `hinged sections; particularly the lower hinged section,when it is desired to discharge thegrain. w i

ApartY from this, these rplates constitute a 'securing meansfor the doorwhen it is placed in closed position, 'for the reason .thatto close they door it is necessary to swing auxiliary sections 15 and 16 outwardlyupon themai'n door section v 10, so that the 'outer` edge of the .mainsection 10 .of the door may contact with thedoorlframe Vbetween theplates 20. The sections 15 and 16 will then vbeswung up and down intonormal position and come to rest in contact with the door frame behindthe plates 20 the inner endl edges of the auxiliary sections contactingwithk the plates. Thus it is impossible to return the door structure toinoperative position without folding the auxiliary sections l5 and 16back upon the main section 10.

Accordingly it will be seen that apart from venting the auxiliarydoorsections from mov- `95,

is required to retain the whole unit in its closed position.

kIn order to retain lthe lower section 16 in closed position and toprovide means for readily releasing it, locking bars 21 are slidablypositioned in the floor of the car outside of the door section 16 andthese members are pivotally carried upon an operating lever 22 which ispivoted as at 23 below the car floor. Y l 1 A guide 24 is positioned.Aintermediate the ends of the lever and a` locking guide 25 is positionedtowards the free end of thev lever on the under v' side of the car sothat, as illustrated in Figure 1, the lever may be swung intoengagement'with the usefof locking members or the like for-prei thelocking guide, and a seal or other fastening device may be secured tokeep it in place. When the lever is swung into normal closed position,as illustrated in Figure 1, it will be noted that the locking bars 21protrude through the floor' and embrace the outside of the lower section16, so that it vis then` prevented from moving in either direction; 1

Another form of locking arrangement is showny in Figure 5, which is Verysimilar to that as disclosed in the other gures, including the operatynected as at 28 with the operating lever 22.

The lever 26 is connected to one of the locking bars 21 as at 29 similarto the connection be tween the lever 22 and the other locking bar 21 sothatupon movement of the operating lever one of the lockingbarsZl isdirectly brought into engagement, or withdrawn from engagement, withYthe outer edge of the door while the other locking bar 21 isyindirectly similarly moved with-the lever 26, the operating of bothlocking bars being simultaneous. in this form may be `sealed similarlyas in the otherliorm disclosed. i

To discharge the grainit isa simple matter to release the seal andoperate the lever mech-` anism to withdrawr the locking bars 21 fromcontact with the lower section k16, so that thev grainimmediatelyfforcesr the section -16 outwardlyl and discharges.. Ofcourse, it will be v in thehandling of the grain, and when not in usewillv take up very vlittle space within the Various rmodifications maybe made in this invention Without departing from the spiritV thereof orthe scope oftheclaims,A and therefore The operating lever the exactforms shownv are to be taken as illustrative only and not in a limitingsense, and it is desired that only such limitations shall be placedthereon as are disclosed in the prior art or are set forth in the`raccompanying claims.

What I claim as my invention isz- 1. A grain door comprising a unitvattachalole to a car door frame including a-,main section swingablymounted on one side of the door frame, a lip formed in the opposite sideof the door frame to receive the outer end edge of said main section, apair of auxiliary sectionshingedly attached to the upper and lower edgesof said main section and swingable with said, main section, a pair ofspaced apart projecting plate retaining Amembers secured to each side ofthe door frame adapted to abut the inner end edges of the auxiliarysections to seal the joints between said sections and the door frame,and means in connection with the door frame for locking and releasingone of said auxiliary sections. Y

` 2. AY graincar door comprising a unit attachable to a car door frameincluding a main sec- Y v tion provided vwith a hinged unit on one sideadapted to be attached to a hinged mounting rodsecured in a recessbetween the upper and lower parts of-thedoor frame, a pair of auxiliarysections hingedly attached Yto the upper and lower edges of said mainsection and swingable with said main section, means for retaining theunit in inoperative position, means for retaining the. unit in operativeposition, and means in connection with the door frame for locking andreleasing one of said auxiliary sections, including a pair of lockingbars adapted to slide through the base of the door frame to abut oneside of said auxiliarysection, and an-actuating member connected Withsaid locking bars adapted to operate said bars into-or out of engagementwith `said auxiliary section, and` vmeans for Vsecuring said actuatingmember in locked position. 3. A1 deviceas claimed in claim 1,. inwhicha. bar is securedkbetween a pair or" saidy plates on one side of thedoor frame, the main section being rotatably mounted upon said -bar andswinging therewith. w Y I MELVILLE LINDSAY.

